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Panasonic DMR-EH50EB Service Manual
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Panasonic DMR-EH50EB Service Manual

Dvd video recorder
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DVD Video Recorder
DMR-EH50EB
DMR-EH50EG
DMR-EH50EP
DMR-EH52EG
Vol.1
Colour
(K).......................Black Type
(S).......................Silver Type
© 2005 Matsushita Electric Industrial CO., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO.DSD0503040C2
Unauthorized
copying
and

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Summary of Contents for Panasonic DMR-EH50EB

  • Page 1 ORDER NO.DSD0503040C2 DVD Video Recorder DMR-EH50EB DMR-EH50EG DMR-EH50EP DMR-EH52EG Vol.1 Colour (K).......Black Type (S).......Silver Type © 2005 Matsushita Electric Industrial CO., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.
  • Page 2 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG...
  • Page 3 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG...

  • Page 4: Table Of Contents

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG CONTENTS Page Page 1 Safety precautions 13 Caution after replacing parts 1.1. General guidelines 13.1. After replacing the RAM Drive with new one 2 Prevention of Electrostatic Discharge (ESD) to Electrostatic 13.2. When the unit does not operate normally after replacing Sensitive (ES) Devices the Timer Microprocessor or Main P.C.B.

  • Page 5: Safety Precautions

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 1 Safety precautions 1.1. General guidelines 1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

  • Page 6: Prevention Of Electrostatic Discharge (Esd) To Electrostatic Sensitive (Es) Devices

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 2 Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatic Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistor-sand semiconductor "chip"...

  • Page 7: Precaution Of Laser Diode

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 3 Precaution of Laser Diode 4 Handling the Lead-free Solder 4.1. About lead free solder (PbF) Distinction of PbF P.C.B.: P.C.B.s (manufactured) using lead free solder will have a PbF stamp on the P.C.B.

  • Page 8: Each Button

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 5 Each Button...
  • Page 9 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG...

  • Page 10: New Feature

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 6 New Feature 6.1. Quick start function(REC) 1. General A few seconds after tuning on the unit,you can start recording to DVD-RAM,HDD. You can switch the operation of this function (ON/OFF) on the menu screen. .

  • Page 11: Taking Out The Disc From Ram-Drive Unit When The Disc Cannot Be Ejected By Open/Close Button

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 7 Taking out the Disc from RAM-Drive Unit when the Disc cannot be ejected by OPEN/CLOSE button 7.1. Forcible Disc Eject 7.1.1. When the power can be turned off. 1. Turn off the power and press [STOP] [CH UP] keys on the front panel simultaneously for 5 seconds.

  • Page 12: Service Explorer

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 8 Service Explorer Confirm “RAM-Drive Last Error” in Service Mode Execute Service Mode 1. Press [REC], [CH UP] and [OPEN/CLOSE] simultaneously for 5 seconds when P-off. FL Display: *After finishing display “(7). Factor of Drive Error occurring”, press [0] [2] ~[1] [9] keys of the Remote Controller so that 19 memories can be displayed as maximum.
  • Page 13 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG (5) Error occurring Disc type is displayed for 5 seconds. (6) Disc Maker´s ID is displayed for 5 seconds. Example of Disc Maker´s ID: DVD-R Disc FL Display (Disc Maker´s ID) Disc Maker...
  • Page 14 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Error Occurring Disc State...

  • Page 15: Self-Diagnosis And Special Mode Setting

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 9 Self-Diagnosis and Special Mode Setting 9.1. Self-Diagnosis Functions Self-Diagnosis Function provides information for errors to service personnel by “Self-Diagnosis Display” when any error has occurred. U**, H** and F** are stored in memory and held.

  • Page 16: Special Modes Setting

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Error Code Diagnosis contents Description Monitor Display Automatic FL display UNFORM Unformatted disc error You have inserted an unformatted DVD-RAM or DVD-RW that is unformatted or recorded on other equipment. PLEASE Unit is in termination process Unit is in termination process now.
  • Page 17 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Item FL display Key operation Mode name Description Front Key Aging Perform sequence of modes as * Aging Display following the then mode. When the power is ON, press Description shown below continually.
  • Page 18 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Item FL display Key operation Mode name Description Front Key Progressive initialization The progressive setting is initialized to display before execution When the power is on (E-E mode), Interlace. leaves. press [STOP] [PLAY]...

  • Page 19: Service Modes

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 9.3. Service Modes Service mode setting: While the power is off, press REC, CH UP and OPEN / CLOSE simultaneously for five seconds. Item FL display Key operation Mode name Description (Remote controller key) Release Items Item of Service Mode executing is cancelled.
  • Page 20 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Item FL display Key operation Mode name Description (Remote controller key) Audio Mute (XTMUTE) Check whether mute is applied normally by Press [2] [1] in service mode. the timer microprocessor. Audio Mute (XDMUTE) Check whether mute is applied normally by Press [2] [2] in service mode.
  • Page 21 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Item FL display Key operation Mode name Description (Remote controller key) RAM Drive Last Error RAM Drive error code display. 1. Error Number is displayed for 5 Press [4] [2] in service mode.
  • Page 22 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Item FL display Key operation Mode name Description (Remote controller key) Display the accumlated Display the accumulated unit´s working time. Press [6] [4] in service mode. working time (Indicating unit: Second) Display the Error History Display the Error History stored on the unit.
  • Page 23 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Item FL display Key operation Mode name Description (Remote controller key) P50(L) Output Timer Microprocessor IC7501-83 output Low Press [8] [5] in service mode. signal for AV1-pin 10 passing through inverter (approx. 4.4V DC at AV1-pin 10).

  • Page 24: Assembling And Disassembling

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 10 Assembling and Disassembling 10.1. Disassembly Flow Chart The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing. To assemble the unit, reverse the steps shown in the chart below.

  • Page 25: Top Case

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 10.3. Top Case 10.5. SD Card P.C.B. 1. Remove the 2 screws (A) and 3 screws (B). 1. Remove 2 Screws (A) to remove SD Card P.C.B. 2. Slide Top Case rearward and open the both ends at rear side of the Top Case a little and lift the Top Case in the direction of the arrows.

  • Page 26: Dvd-Ram Drive

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG CAUTION: 10.8. HDD When replacing Digital P.C.B., pay attention as below. 1. Remove ATAPI Connector and HDD Power Connector. 2. Remove 4 Screws (A) to remove HDD Angle with HDD. 10.7. DVD-RAM Drive 1.

  • Page 27: Led P.c.b

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Handling of HDD The following precautions should be taken when handling HDD. 4. Remove 4 screws to remove HDD. a. Never give an impact to HDD. (Even a drop from 1cm height can be a cause of HDD failure.

  • Page 28: Power

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 2. At first disconnect the connector on one side as shown 2. Remove 3 Screws (B) and disconnect Connector (A) and below, and pull out LED P.C.B. HDD Power Connector. 3. Unlock Power P.C.B. from a Flange to remove Power P.C.B.

  • Page 29: Front (L) P.c.b

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 10.12. Front (L) P.C.B. 2. Remove 7 Screws (A) and Screw (B). 1. Remove a Screw (A) to remove Front (L) P.C.B. 3. Unlock 2 Locking Tabs (A) to remove Rear Panel. 10.13. Main P.C.B.

  • Page 30: Tuner P.c.b. And Nicam Decoder

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 10.14. Tuner P.C.B. and Nicam Decoder P.C.B. 1. Pull out the Tuner P.C.B. in the direction of the arrow. 2. Remove the solders and pull out the Nicam Decoder P.C.B.

  • Page 31: Service Fixture And Tools

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 11 Service Fixture and Tools Part Number Description Compatibility RFKZ0125 Extension FFC (Digital P.C.B. - DVD-RAM Drive / 40 Pin) Same as E50/ E55 series RFKZ0126 Extension Cable (MainP.C.B. - DVD-RAM Drive/ 4 Pin)

  • Page 32: Checking And Repairing Of Digital P.c.b

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 12.2. Checking and Repairing of Digital P.C.B.

  • Page 33: Checking And Repairing Of Main P.c.b

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 12.3. Checking and Repairing of Main P.C.B.

  • Page 34: Checking And Repairing Of Dvd-Ram Drive

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 12.4. Checking and Repairing of DVD-RAM Drive...

  • Page 35: Checking And Repairing Of Hdd

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 12.5. Checking and Repairing of HDD...

  • Page 36: Caution After Replacing Parts

    Perform auto recording and playback for one minute using the RAM No abnormality should be seen in the picture, sound or operation. disc. *Panasonic DVD-RAM disc should be used when recording and playback. Model with the HDD: Perform auto recording and playback for one No abnormality should be seen in the picture, sound or operation.

  • Page 37: Voltage And Waveform Chart

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 15 Voltage and Waveform Chart Note) Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point, because it may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
  • Page 38 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Ref No. IC3001 MODE PLAY STOP Ref No. IC4009 IC4011 MODE 11.6 PLAY 11.6 STOP 11.6 Ref No. IC4012 IC7401 MODE 11.6 12.3 11.6 PLAY 11.6 12.3 11.6 STOP 11.6 12.3 11.6 IC7402 IC7403 Ref No.

  • Page 39: Tuner

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Q4004 Q4006 Q4007 Q4008 Q4009 Ref No. MODE -0.9 -0.1 -0.1 -0.2 -0.2 PLAY -0.9 -0.1 -0.1 -0.2 -0.2 STOP -0.4 -0.1 -0.1 Q7401 Q7501 Q7502 Q7503 Q7504 Ref No. MODE 11.6 PLAY 11.6...

  • Page 40: P9001 Connector

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 15.5. P9001 Connector P9001 Ref No. MODE PLAY STOP Ref No. P9001 MODE PLAY STOP P9001 Ref No. MODE PLAY STOP Ref No. P9001 MODE PLAY STOP P9001 Ref No. MODE PLAY STOP...

  • Page 41: Waveform Chart

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 15.6. Waveform Chart T1150-3 STOP T1150-15,18 STOP T1150-7 STOP T1150-5 STOP 30Vp-p (5 sec.div) 30Vp-p (5 sec.div) 560Vp-p (5 sec.div) 8Vp-p (5m sec.div) IC1150-1 STOP IC1150-2 STOP P7402-83 REC/PLAY P7402-51 REC/PLAY 8.0Vp-p (5 sec.div) 0.5Vp-p (5 sec.div)

  • Page 42: Abbreviations

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 16 Abbreviations INITIAL/LOGO ABBREVIATIONS INITIAL/LOGO ABBREVIATIONS A0~UP ADDRESS ERROR TORQUE CONTROL ACLK AUDIO CLOCK ERROR TORQUE CONTROL AD0~UP ADDRESS BUS REFERENCE ADATA AUDIO PES PACKET DATA ENCSEL ENCODER SELECT ADDRESS LATCH ENABLE ETMCLK EXTERNAL M CLOCK (81MHz/40.5MHz)
  • Page 43 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG INITIAL/LOGO ABBREVIATIONS INITIAL/LOGO ABBREVIATIONS READ ENABLE VBLANK V BLANKING RFENV RF ENVELOPE COLLECTOR POWER SUPPLY RF PHASE DIFFERENCE OUTPUT VOLTAGE (CD-ROM) REGISTER SELECT VCDCONT VIDEO CD CONTROL (TRACKING RSEL RF POLARITY SELECT BALANCE)
  • Page 44 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG...

  • Page 45: Block Diagram

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 17 Block Diagram 17.1. Power Supply Block Diagram POWER P.C.B. MAIN P.C.B. IC1400 (DC/DC CONVERTER) D+1.5V P1102 P1501 VOUT D+1.5V 12,13 ON/OFF GND POWER ON H P1102 P1501 X SW+3.8V P1102 P1501 T1150...
  • Page 46 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG MAIN P.C.B. DIGITAL P.C.B. IC9001 (REG.D+1.2V) P7402 P9001 D+1.5V 82,84,86,88 VOUT D+1.2V IC3201- POWER ON 5 CONT X SW+3.8V IC1501 (REG.ANA+5V) P7402 P9001 VOUT ANA+5V ANA+5V IC3206- 18 26 48,52 CONT IC4011 IC4409 (REG.AU+5V)

  • Page 47: Analog Video Block Diagram

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 17.2. Analog Video Block Diagram :REC SIGNAL :PB SIGNAL IC3001 (VIDEO PROCESSOR) MAIN P.C.B. JK3903 (SW1) (SW2) 6MHz COMP P9001 P7402 C OUT DM 6MHz BIAS 12MHz COMPONENT VIDEO OUT (SW3) P9001 P7402...

  • Page 48: Analog Audio Block Diagram

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 17.3. Analog Audio Block Diagram :REC SIGNAL :PB SIGNAL JK3001 REAR JACK D4005 Q4006 MIX L OUT2 MUTE LINE OUT FROM XTMUTE QR4002-QR4005 TIMER Q4007 IC7501- 63 Q4004 SECTION MIX R OUT2 MUTE...

  • Page 49: Timer Block Diagram

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 17.4. Timer Block Diagram IC7501 T7501 IR7501 (TIMER) DISPLAY HEATER POWER SWITCHING MAIN P.C.B. TRANSFORMER REMOTE CONTROL RECEIVER VDD GND CTL. IP7501 D7506 P SAVE HEATER+ +38V UNREG.+38V PP7401 PS7801 POWER SAVE H...
  • Page 50 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG...

  • Page 51: Schematic Diagram

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 18 Schematic Diagram 18.1. Interconnection Schematic Diagram POWER P7001 P7506 P1502 P3202 FP601 P102 DR12V RESET- /HRST DR12V POWER SW ON POWER SW ON DRGND M GND DR5V FRONT(L) P.C.B. DD10 DD10 P7402...

  • Page 52: Power Supply Schematic Diagram

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 18.2. Power Supply Schematic Diagram ZA1103 ZA1104 EYF52BCY EYF52BCY P1101 D1140 K2AA2H000007 L1120 L1121 B0EDKT000009 F1101 G0B233D00001 G0B233D00001 (RECTIFIER) AC INLET 250V T2AL C1125 1000P VA1110 C1121 C1143 ERZVA5V471 0.068 400V68 T1150 ETS29AZ2G6AC...
  • Page 53 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG L1402 15u R1409 R1411 R1407 4700 2700 LB1400 J0JHC0000048 C1412 C1421 C1413 0.01 10V470 Q1400 IC1401 B1DHDD000022 C0DBAKG00005 D1401 (REG.DR+5V) (DC-DC CONVERTER) B0JCPD000021 C1411 180P IP1401 K5H3022A0013 R1405 L1400 10u C1409 C1407 C1408...

  • Page 54: Main Net Section (Main P.c.b. (1/3)) Schematic Diagram (M)

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 18.3. Main Net Section (Main P.C.B. (1/3)) Schematic Diagram (M) TO P1102 POWER P.C.B. TO P9001 P1501 LB1504 DIGITAL P.C.B. J0JKB0000003 (Audio Net Section) P7402 X SW 5.8V X SW 5.8V X SW 5.8V...
  • Page 55 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG G IIC DATA A G IIC CLK A X SW 5.8V G CPS VOUT A C1538 C7406 RFC A MUTE M:Main Net Section(Page: G RFC AOUT A EH50EB AI:A/V I/O Section(Page: TO PS7801...

  • Page 56: A/V I/O Section (Main P.c.b. (2/3)) Schematic Diagram (Ai)

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 18.4. A/V I/O Section (Main P.C.B. (2/3)) Schematic Diagram (AI) S VIDEO VIDEO AUDIO AUDIO VIDEO AUDIO AUDIO VIDEO AUDIO AUDIO IN L IN R L OUT R OUT AV4 IN L AV4 IN...
  • Page 57 NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERING. (Main P.C.B.(2/3)) THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST, AND MAY BE DMR-EH50EB/EG/EP,EH52EG A/V I/O Section (Main P.C.B.(2/3)) Schematic Diagram(AI) SLIGHTLY DIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED. Schematic Diagram(AI)

  • Page 58: Timer Section (Main P.c.b. (3/3)) Schematic Diagram (T)

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 18.5. Timer Section (Main P.C.B. (3/3)) Schematic Diagram (T) D7509 B0JDCE000002 X SW 5.2V X SW+5.2V C7585 6V100 C7578 C7579 C7524 TW7501 6V47 6V47 R7621 R7623 TO P7101 5.2V 100K R7599 R7598 R7597...
  • Page 59 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG P50 CONTROL DP7501 A2BD00000099 X SW+5.2V TIMER DISPLAY R7583 R7584 R7586 4700 TL7513 TL7514 Q7506 R7585 R7587 2SD0601ARN 2.2M 220K RFC A MUTE Q7507 2SD0601ARN C7552 R7588 WIDE 220P 100K AV2 PB AV3 S IN...

  • Page 60: Tuner Pack Schematic Diagram

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 18.6. Tuner Pack Schematic Diagram TU7801 ENGF7501GF:EH50EG,EH52EG U/V TUNER EH50EG,EH52EG ENG57D02G1F:EH50EB EH50EB ENGF7502GF:EH50EP EH50EG/EP, EH52EG EH50EP K7808 R7814 C7825 R7818 100P C7828 K7807 R7813 0.01 LB7805 LB7803 LB7804 J0JHC0000032 J0JHC0000032 J0JHC0000032 LB7802 J0JHC0000032...

  • Page 61: Nicam Decoder Schematic Diagram

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 18.7. Nicam Decoder Schematic Diagram C7335 IC7302 K7302 0 C0EAH0000051 TO PK7701 (RESET) MAIN P.C.B. K7301 0 (MAIN NET SEC.) PK7301 K7303 K7305 0 R7322 TU AUDIO IN LB7303 J0JCC0000080 L7303 1u JC REG.5V...

  • Page 62: Sd Card Schematic Diagram

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 18.8. SD Card Schematic Diagram TO P3201 TO SD CARD DIGITAL P.C.B. TL6802 P6803 (AVENC/RTSC/AVDEC/ DAT3 MAIN CPU-1 SECTION) P6802 LB6801 FL6801 J0JHC0000032 F1H0J1050025 3.3V 3.3V MSOTX C6803 C6802 DAT2 R6804 R6805 R6807...

  • Page 63: Led Schematic Diagram

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 18.9. LED Schematic Diagram TO P7507 MAIN P.C.B. (TIMER SECTION) P7101 X SW 5.2V SD SEL LED DVD SEL LED HDD SEL LED R7103 R7104 R7105 SD SEL DVD SEL HDD SEL D7101...
  • Page 64 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG...

  • Page 65: Print Circuit Board

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 19 Print Circuit Board 19.1. Power P.C.B. Power P.C.B. Integrated Circuit Connector Coil C1122 C1405 C1702 R1208 R1701 IC1150 P1101 L1120 C1123 C1406 C1703 R1209 R1702 IC1200 P1102 L1121 C1125 C1407 C1704 R1210...

  • Page 66: Main

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 19.2. Main P.C.B. 19.2.1. Main P.C.B. (1/4 Section) (EG) (EG) (EG) (EB/EP) (FRONT) (REAR) Location Map DMR-EH50EB/EG/EP,EH52EG Main P.C.B. VEP79107J:EH50EB,VEP79107H:EH50EG,EH52EG VEP79107N:EH50EP (1/4 Section)
  • Page 67 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 19.2.2. Main P.C.B. (2/4 Section) (FRONT) (REAR) Location Map DMR-EH50EB/EG/EP,EH52EG Main P.C.B. VEP79107J:EH50EB,VEP79107H:EH50EG,EH52EG VEP79107N:EH50EP (2/4 Section)
  • Page 68 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 19.2.3. Main P.C.B. (3/4 Section) Main P.C.B. (EB) (FRONT) (REAR) Location Map (EB/EG) DMR-EH50EB/EG/EP,EH52EG (EG) Main P.C.B. VEP79107J:EH50EB,VEP79107H:EH50EG,EH52EG VEP79107N:EH50EP (3/4 Section)
  • Page 69 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 19.2.4. Main P.C.B. (4/4 Section) (EB) (EB) (EP) (EB/EG) (EB) (EG/EP) (EB) (FRONT) (REAR) Location Map DMR-EH50EB/EG/EP,EH52EG Main P.C.B. VEP79107J:EH50EB,VEP79107H:EH50EG,EH52EG VEP79107N:EH50EP (4/4 Section)
  • Page 70 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 19.2.5. Main P.C.B. Address Information Main P.C.B. Integrated Circuit TL7511 LB7415 C3035 C7401 Resistor R4011 R7544 R7644 IC1501 TL7512 LB7501 C3038 C7402 R1503 R4013 R7548 R7648 IC1502 TL7513 LB7507 C3039 C7403 R1504 R4014...

  • Page 71: Tuner P.c.b., Led P.c.b., Front (L) P.c.b

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 19.3. Tuner P.C.B., LED P.C.B., Front (L) P.C.B. LED P.C.B. Tuner P.C.B. (EP) (EB) (EG/EP) (EP) (EB/EG) (EB) (EB) Front (L) P.C.B. (EB) (EP) (EG/EP) (EG) (EB) (EB) DMR-EH50EB/EG/EP,EH52EG Tuner P.C.B. DMR-EH50EB/EG/EP,EH52EG VEP07A77A:EH50EG,EH52EG LED P.C.B.

  • Page 72: Nicam Decoder

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 19.4. Nicam Decoder P.C.B. Nicam Decoder P.C.B. DMR-EH50EB/EG/EP,EH52EG Nicam Decoder P.C.B. (VEP07A51A)

  • Page 73: Sd Card

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 19.5. SD Card P.C.B. SD Card P.C.B. DMR-EH50EB/EG/EP,EH52EG DMR-EH50EB/EG/EP,EH52EG (Foil Side) (Component Side) SD Card P.C.B. (Component Side) SD Card P.C.B. (Foil Side) VEP73121C:Black Type VEP73121C:Black Type VEP73121D:Silver Type VEP73121D:Silver Type...
  • Page 74 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG...

  • Page 75: Exploded Views

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 20 Exploded Views 20.1. Casing Parts & Mechanism Section...

  • Page 76: Packing & Accessories Section

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 20.2. Packing & Accessories Section...

  • Page 77: Replacement Parts List

    DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG 21 Replacement Parts List Notes: Ref. Part No. Part Name & Remarks Description *Important safety notice: RHD30115-3 SCREW Components identified mark have special RMA1915 DIGITAL ANGLE characteristics important for safety. RKA0177-K LEG CUSHION...
  • Page 78 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description RQT8027-L OPERATING (IG) (EH50EG) C3910,1 F2A1V100A534 35V 10U INSTRUCTIONS C3914,1 F2A1H100A236 50V 10U RPG7566 PACKING CASE (EB)
  • Page 79 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description C7510 F1H1C104A042 16V 0.1U IC7401 C0CBCYG00004 C7511 F1H1H1010005 50V 100P IC7402 C0DBCHD00004 C7512 F1H1C104A008 16V 0.1U IC7403...
  • Page 80 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description P7504 K1KA03AA0301 CONNECTOR(3P) R3994 D0GB473JA002 1/10W 47K P7506 K1KA03AA0301 CONNECTOR(3P) R3995 D0GB153JA002 1/10W 15K (EB,EG) P7507 K1KA06AA0288...
  • Page 81 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description R7548,4 D0GB472JA002 1/10W 4.7K S7508 K0F111B00044 SWITCH,REC R7550 D0GB223JA002 1/10W 22K T7501 G4D1C0000003 TRANSFORMER R7551- D0GB101JA002 1/10W 100...
  • Page 82 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description W524-28 D0YDR0000006 CHIP RESISTOR VEP07A77A/B/C TUNER P.C.B W529 D0YBR0000002 CHIP RESISTOR W530 D0YDR0000006 CHIP RESISTOR C7801 F1H1H1030006 50V 0.01U...
  • Page 83 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description D1401 B0JCPD000021 DIODE R1410 ERJ6RBD151V 1/10W 150 D1601 B0JCPD000021 DIODE R1411 ERJ6RBD123V 1/10W 12K D1701 B0JCPE000015 DIODE...
  • Page 84 DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Ref. Part No. Part Name & Remarks Description RX6801 D1H82204A024 RESISTOR-RESISTOR RX6802 D1H81234A024 RESISTOR-RESISTOR...

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